Bevo Swiss Platinum Race Rated Chrome Bearings are engineered and manufactured to surpass the quality of standard bearings. Only Chrome Steel races and retainers are used in the manufacturing of Bevo™ Bearings. The quality and characteristics of Chrome Steel not only dramatically increases the life of your bearings, it also assures maximum performance resulting in a faster smoother ride. Our custom DEEP Groove Channel stabilizes the roll, reducing vibration and roll resistance. Only self channeling synthetic lubricants are used in Bevo™ bearings. You can rest assured when riding on genuine Bevo™ Gold or Silver rated bearings, you will maximize your performance